Wiring panel for electrical apparatus



y 1929- H. H. WERMINE 9 158.993

WIRING PANEL FOR ELECTRICAL APPARATUS Filed Sept: 9 1927 3 Sheets-Sheet 1 y 2, 1929- H. H. WERMINE 1,718,993

WIRING PANEL'F'OR ELECTRICAL AFPARATUS Filed Sept. 9, 1927 5 Sheets-Sheet g JGQO 0 18 e E Q5315 3 w 53; o -2 :1

\ Q w 23 46-? E July 2, 1929;

H. H. WERMHNE 1.718.993

- WIRING PANEL FOR ELECTRICAL. APPARATUS Filed Sept. 9, 1921 s Sheets-Sheet 3 690 Jt'. Zzfrmm Patented July 2, 1929.

UNITED STATES A 1,718,993 PATENT OFFICE.

HUGO H. WERMINE, or VILLA Pan c, IL INoIs, ASSIGNOR r BELDEN MANUFACTUR- ING COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF'ILLINOIS.

WIRING PANEL. FOR ELECTRICAL APPARATUS.

\ Application filed September 9, 1927. Serial No. 218,384.

This invention relates to wiring panels for electrical apparatus and has particular reference to means for Wiring a radio set, although adaptable for use in connection with other forms of electrical apparatus.

One object of the invention is to provide means whereby. such electrical apparatus as above mentioned may be easily and quickly wired by an unskilled person, and Without the use of numerous or expensive tools. An-

other object is to provide such wiring means 'which will practically insure proper con-' nection of the various elements constituting the apparatus. r

A further object-of the invention is to provide wiring means of the class described which can be economically manufactured in a shop and sold as a unit to the builders of the apparatus for which the unit is intended.

is adaptable to practicall any desired form of electrical circuit, sue as,'for instance, .any of the present day radio circuits; to provide a wiringpanel which will be effective, as an incident to its wiring function, to support the devices which it connects; and to provide a structure of the class described which will be neat and compact and will enhance the appearance of a connected group of electrical devices by eliminating the usually numerous exposed wires extending in various directions and also by grouping silich devices according to a predetermined an. 1 It is also an object of the invention to provide an improved method'of making the wiring panel and in general to provide an improved device of the class described. Other objects and advantages of the invention will beunderstood by reference to the following specification and the accompanying drawings in which I have illustrated one form of the invention embodied in a radio receiving set, and in which drawings Figs. 1, 2 and 3 are plans, .respectively, of three layers of panel and wiring which are adapted to be assembled, by. being super three layers when assembled. 4 Figs. 5 and 6 are cross sect onsof a radio receiving set illustrating the method of 5 using the panel to connect a plurality of Stillfurther objects of the invention are to provide a wiring panel construction which Fig. 4 is a plan illustrating the unitary radio electrical devices into a radio receivlng circuit, these figures Including sections of the panel taken on the lines 5 5 and (ib',

respectively, of Fig. 4.

Referring to the draWings,.1 have indicated in Fig. 1' a panel-layer or sheet 10, preferably of a phenol condensation insulating material such as bakelite or other suitable insulating material. The material used is preferably such that it may be formed into pliable and semi-cured sheets which may subsequently be completely cured and hardened. The pliable or semi-cured sheet 10'is provided with one or more apertures or notches 11 for a purpose which will presently appear. One or more, conductor members 12 are disposed onf'the face of the layer 10 and arranged thereon. according to a predetermined plan. The conductors are cated at 13 and 14. The terminal portions 13 project into the apertures 11, and the terminalportions 14 project outwardly from the panel, preferably projecting from an edge thereof.

In Fig. 2, I have illustrated a panel orsheet 15' similar in size and form to the sheet 10. The sheet 15 is also referably apertured as at 16 in accordance with the arrangement of the apertures or notches 11in the sheet 10. One or more conductor members 17, similar in construction to the conductors 12, are disposed in the desired arrangement on the sheet 15 and are provided with terminal portions 18 projecting into the variousapertures and terminal portions 19 projecting outwardly from the edge of the sheet.

In Fig. 3, I have illustrated a third panelextending into the apertures 21 and terminal portions 24 extending outwardly from the edge of the sheet.

The wiring panel, accordmg to the presentinvention, is formed by superposing the sheet 1-5 and conductor members disposed thereon over the sheet 10 and its conductors, and then superposing the sheet 20 with its conductors over the sheet 15. It will be apparent that' the construction so far described consists of three separate, superposed layers of pliable or semi-cured insulating material, between thev adjacentfaces of which there are arranged sets of conductors disposed according to a predetermined plan. A fourth layer or sheet of insulating material 53 (Fig. 5) having apertures and notches similar to those in the other layers is superposed over the third sheet so as to cover the conductors thereon, and the four superposed sheets are then pressed together so as to firmly rip the conductors therebetween and to em ed the same in the adjacent sheets, after which the superposed sheets are completely cured so as to form a one-piece panel having a plurality of conductors embedded therein. This one-piece panel structure with conductors embedded therein is illustrated in 'sectionin Figs. 5 and 6, the planes in which the various sheets or layers are united being indicated by light lines 54 extending across the width of the panel. As

shown in Fig. 4, the pressed and cured panel structure results in a wiring unit having the desired terminals projecting outwardly from the edge thereof for receiving connections from batteries or other sources of electrical energy or other electrical devices. The panel of great importance'in connection with radio apparatus.

The arrangement of conductors and terminals disclosed in the present embodiment of the invention is for the radio circuit commercially known as thePfanstiehl circuit. The notch 25 indicated at the upper left hand corner of the panel is provided for the pur pose of permitting'connection and mounting of a suitable switch member 26, as shown in Fig. 5. As shown in this figure, the wiring panel designated 27 is fixedly mounted rela-' tive to a suitable front panel 28 by means of a plurality of mounting brackets 29. The

. switch 26 is of a type which is secured to the frontpanel 28 and is controlled by means of a knob 30. The terminals 31v and .32 of the switch member 26 are connected respectively to the source of electrical energy and'to the '.terminal 14 which is. a part of the conductor 12 of the first set or layer of conductors. Radio frequency coils, such as indicated at 33 -in Fig. 5, are connected by means of conductors 34, 34 to the proper terminals projecting into the apertures 35 of the panel 27.

, Suitable variable condensers, one of which,

is indicated at 36 in Fig. 5, may be mounted on the panel 27 by means of screws 37 or other suitable means, apertures 38 being provided in the panel for permitting the passage of the screw 37 theret-hrough, without contacting with any of the various conductors embedded in thepanel. Apertures 39 are also provided in the panel 27 for permitting the passage therethrough of the condenser operating shaft, one of which is indicated at 40 and which is connected to a dial 41 disposed in front of the panel 28.

Radio tube holders or sockets such as indicated at 42 may be connected, as-.clearly shown in Fig. 6, to the proper terminals projecting into the apertures 43 in the panel, and audio transformers such as indicated at 44 may be connected to the proper terminals projecting into the apertures 45. Apertures indicated at 46 and 47 serve to expose terminal portions for receiving condensers required by the radio circuit for which the present panel is arranged, and the notch indicated at 48 is provided for facilitating mounting of a jack 49 which is connected to terminals projecting into the said notch from the edge of the panel.

The construction of the panel is such that the terminal portions which project into the apertures and receive terminal portions of the various devices will be sufiiciently rigid to support the devices connected thereto in substantially fixed position relative to each other. If desired, suitable fixed resistances indicated at 50, 51 and 52 may be embedded in the panel between two of the layers and connecting certain of the conductors as required by the circuit for which thepanel is designed.

For other circuits requiring a lesser or greater number of conductors and terminals of the conductors as well as the number of layers of panel materialand number of layers or sets of conductors. For a simple cir- T cuit involving relatively few conductors, it

may be found practical to include all of the conductors between two sheets of insulating material, provisionbeing made for insulating conductors' which of necessity must cross one another. Such a provision might include, for example, a relatively thin flat piece of insulatiiig material positioned between the overlapping or crossing" parts of the conductors. For; more complicated circuits requiring a greaternumber of conductors, it is preferable to separate the conductors so that where one crosses another it is separated therefrom by a layer or sheet of the insulating panel material, and it. is obvious that as many layers as required may be eombinedto form a umtarv'wiring panel of the class described.

The described details of the invention being illustrative of only a-single embodiment it may be desirable to vary the arrangement termined by reference to the following claims,

which should be construed as broadly as possible consistent with the state of the art.- I claim as my invention: 1. Means for wiring an electrically operated apparatus comprising a panel of insulating material provided with an opening-extending therethrough, said opening being disposed adjacent an electrical deviceconstituting part of the apparatus, a plurality of conouctors embedded in said panel, some of said conductors having terminal portions integral therewith and projecting outwardly from the panel for facilitating connection of such conductors in the desired electrical circuits, and some of said conductors having terminal portions integral therewith and projecting into said opening for receiving the terminals of said adjacent electrical device, thereby to conne'ct said device into the circuit of such conductors.

2. Means for wiring an electrically operated apparatus, comprising a panel of insulating material, a plurality of independent conductors embedded in said panel, some of said'conductors having terminal portions intcgral therewith, accessible from the exterior of said panel and adapted to be electrically connected to adjacent parts of said apparatus, and some of said conductors having-terminal portions integral therewith and projecting outwardly from said panel for facilitating connection of such-conductors in the desired electric circuits.

3 In a radio set, the combination of a plurality of electrical devices, means for connectmined radio circuit, said means including a plurality of conductors having terminal portions for receiving terminals of certain of said devices, said conductors being "spaced apart so as to prevent electrical contact therebetween, and a panel of insulating material encasing said conductorsand provided with openings for exposing said terminal portionsi said panel being efiectiveto maintain sai conductors in said relatively spaced osition, and also to cause said terminals to e efiective to support the respective devices conneeted thereto. i

5. In a radio set, the combination of a plurality of radiodevices, means forconnecting said devices in a predetermined radio circuit and comprising a panel of insulating material, a pluralityof laterally spaced and relatively insulated sets of conductors embedded in said panel, each of said sets including a plurality of relatively insulated conductors disposed in a plane common to all in the set,

portions of some of the conductors in one set overlapping portions of the conductors in the other set, some of said conductors having terminal portions arranged in groups for facilitating connection of certain of saidradio devices thereto, and said panel being provided with openings for exposing said groups of terminals. i

6. In a wiring panel for electrical apparatus, the combination of a layer of insulating material, a set of conductors on one face of said layer, a second layer of insulating material onsaid face and disposed over said set of conductors, a second set of conductors disposed on the outer face of said second layer .of insulating material, some of the conductively insulated sets of conductors enclosed therein, and some of said conductors having portions accessible from the exterior of the unitary panel structure for facilitating connection of such conductors in the desired electrical circuit. v I

7. In a wiring panel forelectrical apparatus, the combination of a layer-of insulating material, a plurality of separate conductors arranged in a common plane on one face of saidlayer, a second layer of insulating material on said face and disposed oversaid set of conductors, a second set of similarly arranged independent conductors disposed on the outer face of said second layer of insulating material, some of the conductors of said second set overlapping some of the conductors of said first set, and another layer of insulating material disposed over said second set of conductors, said layers of insulating material being integrally united to form a unitary" panelfstructure having a pair of relatively insulated sets of conductors'enclosed therein, the conductors in each set being maintained in a relatively fixed position, and some of said conductors having terminal portions projecting from the unitary panel structure for facilitating connection of such conductors in the'desired electrical circuit.

8. In a wiring panel for electrical apparatus, the combination of a layer of insulating" material, a set of conductors on one face of said layer, a second layer of insulating material disposed over said set of conductors, a second set of conductors disposed on the outer face of said second layer of insulating material, some of the conductors of said second set overlapping some of the conductors of said first set, and another la er of insulating material disposed over sai second set of conductors, said layers of insulating material being united to form a unitary panel structure having'a pair of relatively insulated sets of conductors enclosed therein, said unitary panel structure being provided with cut-out portions for exposing terminal portions of some of said conductors for facilitating connection of such conductors in the desired electrical circuit.

9. In a wiring panel for electrical apparatus, the combination of a layer of insulating material, a set of conductors on one face of said layer, a second layer of insulating ma,- terial disposed over said set of conductors, a

. second setof conductors disposed on the trical circuit, and some of said conductors outer face of said second layer of insulating material, some of the conductors of said second set overlapping some of the conductors of said first set, and another layer of insulating material disposed over said second set of conductors, said layers of insulating material being united to-iorm a unitary panel structure having a pair of relatively insulated sets of conductors enclosed therein, said unitary panel structure being provided with a cut-out portion for exposing terminal portions of some of said conductors for. facilitating connection thereof in the desired elec having portions extending outwardly from an edge of the panel structure also for facilitating connection of such conductors in the desired electrical circuit.

10. Means constituting a wiring unit for connecting a plurality of electric devices in a predetermined circuit, comprising a panel of insulating material, a plurality of relatively insulated conductors enclosed in said panel, some of the conductors having portions disposed in overlapping relation to portions of some of the other conductors, the overlapping portions being spaced from each other so as to maintain said conductors insulated. from each other, and some of said conductors having terminal portions accessible from the exterior of said panel for facilitating connection of suchconductors in the desired circuits.

11. Means constituting a wiring unit for I connecting a plurality of electric devices in a'predetermined circuit, comprising a panel of insulating material, a plurality of laterally spaced sets of conductors enclosing said panel, the conductors of each set being relatively insulated, and said sets being insulated from each other, some of the conductors of one set having portions overlapping portions of some of the conductors ofthe other set, and some of the conductors having portions accessible from the exterior of said panel for facilitating connection of such conductorsin the dcsired circuit. 7

12. Means constituting a wiring unit. for

connecting a plurality of electric devices in whereby said portions are adapted to serve as supports for the devices connected thereto.

HUGO H. WERMINE. 

